Saint Gall (s?nt gôl?, gäl?, säN gäl?) See Sankt Gallen.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Saint Gall (French s?? ?al) n1. (Placename) a canton of NE Switzerland. Capital: St Gall. Pop: 455 200 (2002 est). Area: 2012 sq km (777 sq miles)2. (Placename) a town in NE Switzerland, capital of St Gall canton: an important educational centre in the Middle Ages. Pop: 72 626 (2000) German name: Sankt GallenCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014